Enclosure not stated · 4 knobs
Yamaha BD-100 Beat Drive
Based on the Yamaha BD-100 Beat Drive
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 27 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×5 | 10K | 10k | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| Capacitors 10 | ||||
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 1.8nF | 1.8n | read from the layout by eye | |
| ×1 | 330nF | 330n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×4 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 33uF | 33u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2SK30 | 2SK30 | JFET; legend: 2SK30, 2SK117 etc. 2SK118-GR in original; read from the layout by eye | |
| Q2 | 2N5088 | 2N5088 | legend: 2N5088, 2N3904; 2SC1815-GR in original; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | 4558 | 4558 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Drive | A100K | A100k | Potentiometer | read from the layout by eye |
| High Eq | B10K | B10k | Potentiometer | read from the layout by eye |
| Low Eq | A10K | A10k | Potentiometer | read from the layout by eye |
| Out Level | B50K | B50k | Potentiometer | read from the layout by eye |
| LEDs 1 | ||||
| ×2 | 3mm red | 3MM RED | D1, D2; read from the layout by eye | |